Question 837828
 {{{x}}}%  of {{{50}}} is {{{(x/100)50}}},

 {{{(x/100)50=30}}}%............solve for {{{x}}}

{{{(x/cross(100)2)cross(50)=30}}}%

{{{x/2=30}}}%

{{{x=30*2}}}%

{{{x=60}}}%

so, {{{30}}} is {{{60}}}% of {{{50}}}